Partitioned distributed voltage control method for active distribution network oriented to intelligent soft switching

Abstract

The invention relates to a partitioned distributed voltage control method for active distribution networks oriented to intelligent soft switches, which includes the following steps: according to the structure and parameters of the selected active distribution system, the access points of distributed power sources are used as each Divide the center of the area, and obtain the voltage variation of each node when the distributed power output changes through sensitivity analysis; establish a centralized voltage control model for active distribution networks oriented to intelligent soft switches; establish an active distribution network oriented to intelligent soft switches Partitioned distributed voltage control model; the partitioned distributed voltage control model of active distribution network is solved by alternating direction multiplier algorithm until the convergence accuracy is satisfied; the solution result is output. The present invention fully considers the influence of high-permeability distributed power supply access, establishes a partitioned distributed voltage control model for active distribution networks oriented to intelligent soft switches, uses the alternate direction multiplier method to solve the problem, and obtains the distributed voltage of intelligent soft switches Control Strategy.

Description

technical field [0001] The invention relates to a voltage control method of an active distribution network, in particular to a partitioned distributed voltage control method of an active distribution network oriented to an intelligent soft switch. Background technique [0002] The high attention to energy and the environment makes the development of distribution networks face new pressures and challenges, and these pressures and challenges are also important opportunities to promote the development of traditional distribution networks to active distribution networks. In recent years, the increasing penetration rate of distributed generation (DG), including photovoltaic (PV) and wind turbines, has made the active distribution network face a series of new problems, such as bidirectional power flow, voltage over-limit, Network congestion, etc., in which the voltage limit is particularly prominent. In the traditional power distribution system, its adjustment methods are limited...

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Problems solved by technology

[0005] Nowadays, a large number of distributed power sources are connected to the distribution network, which makes the traditional distribution network form a complex system with multi-source control. At the same time, the control variables also increase, which brings great challenges to the calculation and solution.

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